int __cdecl main(int argc, const char **argv, const char **envp)
{
  __int64 v4; // [sp+0h] [bp-30h]@2
  int i; // [sp+14h] [bp-1Ch]@4
  int v6; // [sp+18h] [bp-18h]@4
  int v7; // [sp+1Ch] [bp-14h]@4

  if ( argc == 2 )
  {
    printf("Checking License Key: %s\n", argv[1], envp, argv);
    if ( strlen(*(const char **)(v4 + 8)) != 10 )
    {
      puts("Invalid length");
      return 1;
    }
    v7 = 0;
    v6 = 0;
    for ( i = 0; i < strlen(*(const char **)(v4 + 8)); i += 2 )
    {
      v7 += *(_BYTE *)(*(_QWORD *)(v4 + 8) + i);
      v6 += *(_BYTE *)(i + 1LL + *(_QWORD *)(v4 + 8));
    }
    if ( 2 * v7 == v6 )
      puts("Application activated successfully!");
    else
      puts("Invalid key!");
  }
  else
  {
    puts("Usage: <key>");
  }
  return 0;
}